Munem, M. A., & Yizze, J. P. (1978). Precalculus (3rd.ed.). Worth Publishers,INC.
Lua i Stíl Chicago (17ú heag.)Munem, Mustafa A., agus James P. Yizze. Precalculus. 3rd.ed. New York: Worth Publishers,INC, 1978.
Lua MLA (9ú heag.)Munem, Mustafa A., agus James P. Yizze. Precalculus. 3rd.ed. Worth Publishers,INC, 1978.
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